PHP : Highlight Certain Row within Condition

I have database "Students"

and table "absen"

          absen
             99.3%
             98.8%
             99.3%
             99.1%
             97.3%
             99.0%
             98.8%
             98.9%
             99.1%
             99.3%
             97.9%
             98.7%
             99.0%
             98.6%
             98.8%
             99.2%
             99.0%
             98.4%
        

I want to highlight rows when value is below 98.0%

output

          absen
             99.3%
             98.8%
             99.3%
             99.1%
             97.3%
             99.0%
             98.8%
             98.9%
             99.1%
             99.3%
             97.9%
             98.7%
             99.0%
             98.6%
             98.8%
             99.2%
             99.0%
             98.4%